oj.uz

Submission #197366

# Submission time Handle Problem Language Result Execution time Memory
197366 2020-01-20T15:08:45 Z stefdasca Strongbox (POI11_sej) C++14
0 / 100
 51 ms 5240 KB 
#include<bits/stdc++.h>
#define god dimasi5eks
#pragma GCC optimize("O3")
#define fi first
#define se second
#define pb push_back
#define pf push_front
#define mod 1000000007
#define dancila 3.14159265359
#define eps 1e-9

// #define fisier 1

using namespace std;

typedef long long ll;


int add(int a, int b)
{
    ll x = a+b;
    if(x >= mod)
        x -= mod;
    if(x < 0)
        x += mod;
    return x;
}
ll mul(ll a, ll b)
{
    return (a*b) % mod;
}

ll pw(ll a, ll b)
{
    ll ans = 1;
    while(b)
    {
        if(b & 1)
            ans = (ans * a) % mod;
        a = (a * a) % mod;
        b >>= 1;
    }
    return ans;
}
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
long long rand_seed()
{
    long long a = rng();
    return a;
}
ll n, k, vv[250002];

ll cmmdc(ll a, ll b)
{
    ll c;
    while(b)
    {
        c = a%b;
        a = b;
        b = c;
    }
    return a;
}

bool tri(ll divi)
{
    for(int i = 1; i < k; ++i)
        if(vv[i] % divi == 0)
            return 0;
    return 1;
}
int main()
{

    #ifdef fisier
        ifstream f("input.in");
        ofstream g("output.out");
    #endif

    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> n >> k;
    for(int i = 1; i <= k; ++i)
        cin >> vv[i];
    if(k == 1)
    {
        cout << n;
        return 0;
    }
    ll nr = cmmdc(vv[k], n);
    ll ans = 1;
    for(ll i = 2; i * i <= nr; ++i)
        if(nr % i == 0)
        {
            while(nr % i == 0)
                nr /= i;
            if(tri(i))
                ans = max(ans, n / i);
        }
    if(nr > 1 && tri(nr))
        ans = max(ans, n / nr);
    cout << ans;
    return 0;
}

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Incorrect 2 ms 376 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Incorrect 2 ms 376 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 508 KB Output is correct
2 Incorrect 2 ms 376 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #4
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Incorrect 3 ms 376 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Incorrect 2 ms 376 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Incorrect 2 ms 376 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 376 KB Output is correct
2 Incorrect 2 ms 376 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #8
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 376 KB Output is correct
2 Incorrect 2 ms 376 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #9
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Incorrect 3 ms 376 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #10
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 504 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #11
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 2168 KB Output is correct
2 Incorrect 19 ms 2292 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #12
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 51 ms 4556 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #13
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 49 ms 5240 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #14
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 48 ms 4884 KB Output isn't correct
2 Halted 0 ms 0 KB -